4M-N/1080P non-realtime, 720P realtime, H.265+/H.265/H.264+/H.264 video compression. 1 HDMI/1 VGA, 4ch Video in, 1 RJ45(100M), 4 Audio in/1 Audio out,2 USB, 8 Alarm in/3 Alarm out,Penta-brid(CVBS/HDCVI/AHD/TVI/IP self-adaptive, 4+2 IP camera input,up to 6Mp)